This change implements CentOS 7 support within the os_glance role.
Change-Id: I65d8e66673f5372fe880680a035842ffcd775ac2
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>
Co-Authored-By: Major Hayden <major@mhtx.net>
Co-Authored-By: Marc Gariepy <gariepy.marc@gmail.com>